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ALMEMO ® 4390-2

ALMEMO ® 4390-2
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ALMEMO® Measuring Instruments Technical data and functions • Increased measuring accuracy and stability • Fast measuring rate, up to 50 measuring operations per second With SD memory card, up to 100 mops, optional for 1 channel • 1 ALMEMO® input socket, suitable for all ALMEMO® sensors • or 6-contact clamp connector socket, also for 26 V and 20 mA • More than 65 standard measuring ranges • Support for ALMEMO® plugs with multi-point adjustment, special linearization, and special measuring ranges • Higher measuring quality thanks to electrical isolation between measuring inputs and device power supply (device ground) • Data logger with internal EEPROM, sufficient for 16,000 mea- sured values, configurable as linear or ring memory • Memory connector with micro SD (accessory) • As standard 2 limit value relays can also be driven via interface • Option with double analog output can also be driven via interface Technical data Precision class Measuring rate Measuring inputs 1 ALMEMO® input socket, suitable for all ALMEMO® sensors or 6-contact screw connector with input (integrated shunt) Accuracy Divider/ shunt ±0.1 % of measured value Channels 4 channels for double sensors Electrical isolation for analog sensors between measuring input and power supply (device ground) Sensor power supply 2 limit value relays 2 ALMEMO® sockets, suitable for all output modules (analog / data / trigger / relay cables, memory, etc.) ALMEMO® precision measuring instrument in fitted panel design with data logger function. Comprehensive range of func- tions for all application areas Increased measuring accuracy, fast measuring rate, 1 measu- ring input, 2 limit value relays, integrated. Option with double analog output. 2 ALMEMO® output sockets, suitable for digital interfaces, analog output, trigger input, alarm contacts, memory card new: Programming functions displayed in normal text (3 Measuring function, memory, sensor, device, output Measuring functions Measured value, dual display, smoothing, zero-setting, setpoint adjustment, maximum / minimum / average values, temperature compensation, atmospheric pressure compensation Sensor programming: Measuring range, measured value correction, scaling, units, limit value monitoring, graduated locking of functions, scaling of analog output Device programming: Conversion rate, real-time clock with date, output cycle, baud rate, choice of languages Option with double analog output 10 V or 20 mA (programmable) 0.0 to 10.0 V 0.5 mV / digit, load >100 kilohms 0.0 to 20.0 mA 0.1 mA / digit, load <500 ohms Accuracy 0.1 % of final value Standard equipment Keypad 5 membrane keys Date and time-of-day Real-time clock, buffered with battery Memory, internal EEPROM sufficient for 16,000 measured values Power supply Mains operation Panel opening Standard plastic housing Memory connector with micro SD, including USB card reader (see chapter „Output modules") Measuring rate 400 mops (SD card required) SA0000Q4 Power supply 10 to 30 VDC, electrically isolated OA4390U 2 analog outputs (common ground), electrically isolated 10 V or 20 mA (programmable) OA4390R02 Lemperature ranges for 8 refrigerants SB0000R2 Standard delivery Order no. Operating instructions, manufacturer's test certificate, Precision measuring instrument ALMEMO® 4390-2 MA43902 DAkkS or works calibration KE90xx, electrical, for measuring instrument (see chapter „Calibration certificates"). DAkkS calibration meets all the requirements regarding test resources laid down in DIN EN ISO/IEC 17025.

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